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                ZCC loves march                </h1>
                <p>时间限制：5s&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  空间限制：128MB</p>			</div>
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                                <h3>题目描述</h3><p><div>On a m*m land stationed n troops, numbered from 1 to n. The i-th troop's position can be described by two numbers (xi,yi) (1&lt;=xi&lt;=m,1&lt;=yi&lt;=m). It is possible that more than one troop stationed in the same place.</div>
<div>Then there are t minutes, in each minute one of the following two events will occur:</div>
<div>(1)the x-th troop moves towards a direction( Up(U) Down(D) Left(L) Right(R))for d units;(You can suppose that the troops won't move out of the boundary)</div>
<div>(2)the x-th troop needs to regroup the troops which stations in the same row or column with the x-th troop. That is, these troops need to move to the x-th troop's station.</div>
<div>Suggest the cost of i-th troop moving to the j-th troop is (xi-xj)^2+(yi-yj)^2, every time a troop regroups, you should output the cost of the regrouping modulo 10^9+7.</div>
<p></p></p><hr/><h3>输入格式</h3><p><div>The first line: two numbers n,m(n&lt;=100000,m&lt;=10^18)</div>
<div>Next n lines each line contain two numbers xi,yi(1&lt;=xi,yi&lt;=m)</div>
<div>Next line contains a number t.(t&lt;=100000)</div>
<div>Next t lines, each line's format is one of the following two formats:</div>
<div>(1)S x d, S&isin;{U,L,D,R}, indicating the first event(1&lt;=x&lt;=n,0&lt;=d&lt;m)</div>
<div>(2)Q x, indicating the second event(1&lt;=x&lt;=n)</div>
<div>In order to force you to answer the questions online, each time you read x', x=x'&oplus;lastans(&quot;&oplus;&quot; means &quot;xor&quot;), where lastans is the previous answer you output. At the beginning lastans=0.&nbsp;</div>
<p></p></p><hr/><h3>输出格式</h3><p><div>
<div>Q lines, i-th line contain your answer to the i-th regrouping event.(modulo 10^9+7)</div>
</div>
<p></p></p><hr/><h3>样例输入</h3><pre>5 3
1 3
2 1
2 2
2 3
3 2
6
Q 1
L 0 2
L 5 2
Q 5
R 3 1
Q 3</pre><hr/><h3>样例输出</h3><pre>1
1
7

</pre><hr/><h3>提示</h3><p><div>The input after decode:</div>
<div>Q 1</div>
<div>L 1 2</div>
<div>L 4 2</div>
<div>Q 4</div>
<div>R 2 1</div>
<div>Q 2</div>
<div><img src="../file/3847_0.png" width="707" height="60" alt="" /></div>
<p></p></p><hr/><h3>题目来源</h3><p>By 镇海中学</p>
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